And tossed ducks in bed cover? (5)

I believe the answer is:

doona

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'bed cover?' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'and tossed ducks in' is the wordplay.
'tossed' indicates anagramming the letters.
'ducks' becomes 'OO' (duck means zero in cricket).
'in' is an insertion indicator.
'and' anagrammed gives 'dna'.
'dna' going around 'oo' is 'DOONA'.

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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